## [1] 42050637
## [1] 673472
## Warning: Removed 14 row(s) containing missing values (geom_path).
## Warning: Removed 14 row(s) containing missing values (geom_path).
## Warning: Removed 1 rows containing missing values (position_stack).
## Warning: Removed 38 rows containing missing values (position_stack).
## Warning: Removed 14 rows containing missing values (position_stack).
## Warning: Removed 14 rows containing missing values (position_stack).